Phenolic content of mid-rib segments treated with various inhibitors
of lipoxygenase. Segments (5-mm long) were immersed in various
concentrations of antipyrine, diethyldithio-carbamic acid (DIECA),
potassium diethyl dithiophosphate (DIEP), and 1-phenyl-3-pyrazolidinone
(1P3P) for 60 min. Phenolic content was determined by measuring
the absorbance of a clarified methanol extract at 320 nm after holding
the tissue at 10 C for a total of 48 h after the initial excision. Vertical
lines associated with each mean represent the standard deviation about
that mean.